• Product name
  • Description
    Mouse monoclonal to IL15
  • Tested applications
    Suitable for: IHC-P, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant full length protein (Human)

  • General notes

    Abcam is committed to meeting high standards of ethical manufacturing and has decided to discontinue this product by June 2019 as it has been generated by the ascites method. We are sorry for any inconvenience this may cause. 



Our Abpromise guarantee covers the use of ab55276 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 3 µg/ml.
Flow Cyt Use 1µg for 106 cells. ab170191-Mouse monoclonal IgG2a, is suitable for use as an isotype control with this antibody.


  • Function
    Cytokine that stimulates the proliferation of T-lymphocytes. Stimulation by IL-15 requires interaction of IL-15 with components of IL-2R, including IL-2R beta and probably IL-2R gamma but not IL-2R alpha.
  • Tissue specificity
    Most abundant in placenta and skeletal muscle. It is also detected in the heart, lung, liver and kidney. IL15-S21AA is preferentially expressed in tissues such as testis and thymus.
  • Sequence similarities
    Belongs to the IL-15/IL-21 family.
  • Cellular localization
    Secreted and Cytoplasm. Nucleus. IL15-S21AA is not secreted, but rather is stored intracellularly, appearing in the nucleus and cytoplasmic components.
  • Information by UniProt
  • Database links
  • Alternative names
    • IL 15 antibody
    • IL-15 antibody
    • IL15 antibody
    • IL15_HUMAN antibody
    • Interleukin 15 antibody
    • Interleukin-15 antibody
    • Interleukin15 antibody
    • MGC9721 antibody
    see all


  • IL15 antibody (ab55276) used in immunohistochemistry at 3ug/ml on formalin fixed and paraffin embedded human breast cancer.
  • Overlay histogram showing JEG3 cells stained with ab55276 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab55276, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG2a [ICIGG2A] (ab91361, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.


This product has been referenced in:
  • Pangrazzi L  et al. Increased IL-15 Production and Accumulation of Highly Differentiated CD8(+) Effector/Memory T Cells in the Bone Marrow of Persons with Cytomegalovirus. Front Immunol 8:715 (2017). Read more (PubMed: 28674537) »
  • Herndler-Brandstetter D  et al. Human bone marrow hosts polyfunctional memory CD4+ and CD8+ T cells with close contact to IL-15-producing cells. J Immunol 186:6965-71 (2011). IHC-P ; Human . Read more (PubMed: 21562158) »

See all 3 Publications for this product

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